11results about How to "Uniform concentration distribution" patented technology

The utility model discloses an ammonium nitrate solution concentration blending reation kettle with anti -explosion function belongs to reation kettle equipment technical field, the utility model discloses a reation kettle body is communicated with the discharge valve at reation kettle body bottom, can carry out even heating to solution through the electric heating plate in the reation kettle body inner wall bottom groove, avoid local temperature too high and cause ammonium nitrate to decompose gas and cause explosion, the cooperation design of stirring rod and top motor can carry out sufficient stirring to ammonium nitrate solution in reation kettle, make solution concentration distribution even. The annular ring and the explosion -proof pipe fixedly connected with the annular ring that reation kettle body surface sets up up and down, effectively enhanced the overall structural strength of reation kettle, the gas outlet pipe of top annular ring and the gas inlet pipe of bottom annular ring mutually cooperate, and the outside cold gas enters the space between the explosion -proof pipe and reation kettle body, and then even cooling is carried out to reation kettle body, and then gas is discharged to the outside from the gas outlet pipe, and the device has the advantages that the explosion -proof effect is good.

The application discloses a kind of suitable for SCR denitration ammonia injection device and device, including ammonia injection pipe and the ammonia injection port of setting at ammonia injection pipe end, ammonia injection pipe includes ammonia main pipeline, branch pipeline and branch pipeline;Along ammonia main pipeline circumferential direction, equidistantly there are several branch pipelines;In branch pipeline, equidistantly and parallelly there are several vertical branch pipeline branch pipelines;Several branch pipelines are in the same plane, plane vertical branch pipeline;In branch pipeline, there is vertical plane ammonia injection port;Ammonia injection port gas outlet direction is same with ammonia main pipeline inner gas flow direction.The ammonia injection device suitable for SCR denitration designed in the application, including branch pipeline and branch pipeline, ammonia injection pipeline because each part branch pipe length is small, and the difference of branch pipeline diameter is not big, so it can reduce the flow resistance of ammonia in pipeline.

The utility model provides a syrup concentration adjusting device, and relates to the technical field of syrup concentration adjusting, the syrup concentration adjusting device comprises a base, the base is fixedly provided with a stirring tank and a support, and the support is provided with a first stirring assembly and a second stirring assembly for stirring a solution in the stirring tank; the support is provided with a first driving motor used for driving the first stirring assembly to rotate and a driving assembly used for driving the second stirring assembly to rotate, and the rotating direction of the first stirring assembly is opposite to the rotating direction of the second stirring assembly. Compared with a single-direction stirring mode in the prior art, the device has the advantages that the sugar liquid can be more quickly dispersed into the whole solution system through stirring in different directions, so that the mixing is more sufficient, the uniform concentration distribution is ensured, and the blending quality of the sugar liquid is improved.

The utility model provides a kind of manganese sulfate solution adjusting device in electrolytic cell, comprising: electrolytic cell, buffer pool, transfer pool, sedimentation tank, the lower part of the buffer pool is connected with electrolytic cell side by first conveying pump, electrolytic cell other side is equipped with overflow pipe, overflow pipe is communicated with electrolytic cell by first connecting pipe, overflow pipe upper end is lower than the liquid level height in electrolytic cell, and overflow pipe upper part is equipped with overflow tank.The utility model is circulated between the manganese sulfate solution in electrolytic cell and buffer pool by first conveying pump by being equipped with buffer pool, to keep the concentration distribution of manganese sulfate solution in electrolytic cell uniform, by being equipped with on-line densimeter in buffer pool, using the principle that the density of manganese sulfate solution is also low when the concentration of manganese sulfate solution reduces, the concentration of manganese sulfate solution is detected, when lower than threshold value, higher concentration manganese sulfate solution can be supplemented, so that the manganese sulfate solution in electrolytic cell is kept in reasonable interval, and electrolytic efficiency is improved.

This invention provides an energy-saving gelatin-cooking device for donkey-hide gelatin production, relating to the technical field of donkey-hide gelatin production. It includes a support platform, with a main gelatin-cooking furnace fixedly connected to the top of the support platform, and a preheating tank fixedly connected to the top of the support platform. This invention recovers residual heat generated during gelatin-cooking by incorporating heat-conducting and gas-conducting components. The waste heat recovery tank absorbs the external temperature of the main gelatin-cooking furnace through a heat-conducting medium inside a spiral heat-conducting channel, and transfers it to the interior of the preheating tank via a heat-conducting circulation pipe and heat exchange coil, thereby preheating the water used for gelatin-cooking. Furthermore, the steam generated during gelatin-cooking can be preheated by hot gas delivery pipes and hot gas delivery coils, thereby reducing the workload of the main heating device, shortening the cooking cycle, and achieving dual recovery of waste heat, significantly reducing production energy consumption.

The application relates to the technical field of performance evaluation of a biological aerosol sampler, and provides a biological aerosol sampler performance evaluation method, which comprises the following steps: environment construction: adjusting and maintaining the temperature, humidity, air pressure and air cleanliness in a calibration cabin to a preset target range; aerosol generation and homogenization: generating standard aerosols containing a target tracer in the calibration cabin, and mixing the air in the cabin to form a test aerosol environment with uniform spatial concentration distribution in a sampling area; dynamic sampling: making the detected sampler and a comparative sampler sample at multiple different spatial points in the calibration cabin; data comparison and analysis: performing performance calibration on the detected sampler according to the sampling data of the detected sampler and the comparative sampler. The environment conditions highly close to actual application scenarios are constructed, and the comprehensive performance of the biological aerosol sampler can be scientifically, systematically and quantitatively evaluated and calibrated.

The invention relates to the technical field of petrochemical equipment, in particular to a premixing device, a low-nitrogen burner and a ground torch, which comprises a fan, a first pipeline, a second pipeline and a third pipeline, the first pipeline, the second pipeline and the third pipeline are sequentially communicated, the first pipeline is a straight pipeline, and an outlet of the fan is connected with one end of the first pipeline; a spoiler is fixedly arranged at an outlet of the fan; the pipe wall of one side of the first pipeline is connected with an air equalizing pipe in a penetrating manner; the second pipeline comprises a bent section and a straight section; and the third pipeline is a rotary body pipeline. The premixing uniformity of combustible gas and air can be effectively improved, the concentration distribution of the combustible gas and the air in mixed gas is more uniform, combustion is more sufficient and stable, and meanwhile the service life of the combustion head can be prolonged through the uniform temperature field.

The application discloses a water-absorbing core with double-gradient water-absorbing layers and a sanitary product. The water-absorbing core is provided with at least four layers of water-absorbing layers arranged in a stepped manner from top to bottom in the main body, and each water-absorbing layer is distributed with polymer water-absorbing resin; the cross-sectional area of each water-absorbing layer increases layer by layer from the uppermost layer to the lowermost layer; the distribution density of the polymer water-absorbing resin decreases layer by layer from the uppermost layer to the lowermost layer, forming a double-gradient structure of area and density. Preferably, each water-absorbing layer except the lowermost layer is elliptical, the lowermost layer is rectangular, and each layer is generally located at the same center. The layers are connected by hot-melt fibers or spraying latex. Through the double-gradient synergistic effect, the concentration of the polymer water-absorbing resin is smoothly transitioned from the center of the core to the periphery, effectively avoiding the problems of liquid diffusion obstruction and local supersaturation caused by the concentration mutation boundary in the existing two-layer structure, improving the overall utilization rate of the polymer water-absorbing resin, and improving the absorption and anti-back seepage performance under the condition of multiple liquid loading.

The utility model discloses a kind of real stone paint spraying devices, including workbench, the side of workbench is provided with adjusting mechanism, the adjusting mechanism includes support, the bottom of support is fixedly connected with workbench, the bottom of the front of support is fixedly connected with motor, the output of motor is fixedly connected with driving shaft, the front side and rear side of driving shaft surface are all fixedly connected with first synchronous wheel, the surface of first synchronous wheel is engaged with synchronous belt.The real stone paint spraying device is adjusted by setting adjusting mechanism, when angle is needed to be adjusted, start electric sliding table, electric sliding table drives adjusting frame to move, adjusting frame drives shaft to move, shaft drives gear to move, by the cooperation of toothed plate, gear moves in process will also be rotated, and then drive shaft rotation, shaft drives adjusting rod to rotate, adjusting rod drives nozzle to rotate ninety degrees, so that nozzle and ground correspond, then ground can be sprayed.

This invention discloses a detection device for oxygen sensor chip testing, relating to the technical field of oxygen sensor testing equipment. It includes a testing box mounted on a testing platform. The side wall of the testing box has several mounting holes for plug insertion into the oxygen sensor chips. An adjustment pipe connecting to a factory mixed gas pipeline is located on the side of the testing box, and an oxygen pipeline connecting to a factory oxygen supply pipeline is also located on the side of the testing box. Inside the testing box, partitions are slidably arranged along the height direction of the testing box. This detection device for oxygen sensor chip testing, through the use of partitions, flaps, and telescopic components, flexibly achieves zoned isolation control of the testing box, while ensuring full contact between the test gas and the plug. This facilitates rapid and uniform coverage of the sensitive areas of each oxygen sensor chip by the test gas, shortening the response time and improving the consistency and reliability when multiple chips are tested simultaneously.

The utility model relates to the technical field of knitted fabrics, and discloses a high-pressure knitted fabric open-width jig dyeing device which comprises a storage box, the exterior of the storage box is cuboid, the interior of the storage box is hollow, sliding grooves are formed in the two ends of the exterior of the storage box, a supporting column is arranged at one end of the top of the storage box, a supporting rod is arranged outside the supporting column, and the supporting rod is connected with the storage box. The utility model relates to a knitted fabric open width jig dyeing device, which comprises a storage box, a filter barrel and a liquid outlet pipe, and further comprises a circulation assembly which is installed outside the storage box and used for repeatedly and circularly using dye and reducing waste when knitted fabric is subjected to open width jig dyeing, and a water pump is arranged at the bottom end of the interior of the storage box. The circulation assembly comprises the water pump, the liquid suction pipe, the filter barrel, the liquid outlet pipe and the like, so that the dye in the storage box can be pumped out, filtered and then sent back; the repeated recycling of the dye is realized. Therefore, the waste of the dye is greatly reduced, the production cost is effectively reduced, and the pollution pressure on the environment caused by the emission of the dye is also reduced.